Jennings: Manual of Mosses 311 



Neck, the collum. 



Nodose, (cilia) with knots or swollen articulations. 



Ob-, a prefix often used to convey the sense of inversion. 



Obconic, inversely conic. 



Obcordate, inversely cordate. 



Obovdte, inversely ovate, narrowed towards the base. 



Obsolete, scarcely apparent. 



Operculum, the lid covering the mouth of the capsule. 



Ovate, more or less egg-shaped, with the broader end downward. 



Ovoid, more usually applied to a solid with an egg-like outline. 



Panduriform, fiddle-shap>ed. 



Papillae, minute nipple-shaped protuberances. 



Papillose or Papillate, covered with papillae. 



Paraphyllia, minute thin leaves or branched organs scattered imong the leaves. 



Paraphyses, jointed and hvaline hair-like structures growing among reproductive organs. 



Parenchymatous, compnased of broad cells joined end-to-end with square ends, not dove- 

 tailed. 



Paroicous, having the antheridia and archegonia in the same cluster but not mixed, the 

 antheridia being in the axils of the perichaetial leaves below the archegonia. 



Patent, spreading. 



Pectinate, branched or divided like a comb. 



Pedicel, the seta or stalk of the capsule. 



Pedicellate, furnished with a pedicel. 



Pellucid, translucent but scarcely hyaline. 



Pendulous, drooping rather more than when cernuous, hanging down. 



Percurrent, (costa) running through the whole length of the leaf. 



Penchaetium, the involucre of bracts around the female flower and thus also around the 

 base of the seta or sessile capsule. 



Perigonium, the whorl of bracts around the male or antheridial flower. 



Peristome, the fringe of teeth, etc., at the mouth of the capsule. 



Persistent, not easily nor early deciduous. 



Pinnate, with the branches more or less equidistant and arranged on both sides of the 

 stem like a feather. 



Piliferous, bearing a hair-like prolongation. 



Plane, flat. 



Pletirocarpous, with the flowi-rs more or less axillary and the fruit laterally borne. 



Plicate, folded longitudinally. 



Plumose, plume-like. 



Pluriseriate, arranged in several or many series, as of leaves on the stem. 



Polygamous, with the antheridia and archegonia variously disposed on the same plant. 



Porose, pierced with small holes or pores. 



Procumbent , trailing along on the ground. 



Proliferous, bearing abnormal shoots, often from the flower cluster. 



Prosenchymatous, composed of narrow cells whose ends dove-tail past each other, as op- 

 posed to the square-ended parenchymatous cells, 



Protonema, the green filamentous phase of the gametophyte which is derived directly 

 from the germination of the spore, and sometimes persisting. 



Pseudopodium, in Sphagnum the false seta bearing the capsule; in Aulacomnuim, etc., a 

 leafless seta-like branch bearing gemmae. 



Punctate, marked with dots. 



Pyriform, pear-shapied. 



Quadrate, square. 



Radicles, rootlets or rhizotds growing out from the base of the Stem. 



